delivering world-class product solutions for over …...sales agents worldwide. custom sizes and...

Delivering World-Class Product Solutions

For Over 100 Years

Duramax Marine® is an ISO 9001:2015 Certified Company

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Our Mission Is Simple:To Keep You Moving Full Speed Ahead.

DELIVERING WORLD-CLASS PRODUCT SOLUTIONS FOR OVER 100 YEARS

Delivering world-class marine

and industrial product solutions

designed for superior performance

and durability. Backed by over 100

years of unmatched customer

service. That’s why marine and

industrial professionals trust

Duramax Marine® to help keep

them running at peak performance.

WE BUILD MORE THAN JUST TECHNOLOGICALLY ADVANCED PRODUCTS. WE BUILD RELATIONSHIPS.

Our customers rely on our unique

depth of experience. Whether it’s

to answer a technical question,

give technical support, or a special

request that needs a custom

product solution, you can expect

a quick response.

www.DuramaxMarine.com3

Our Mission Is Simple:To Keep You Moving Full Speed Ahead.

www.DuramaxMarine.com

Our international network of sales

representatives and customer

service specialists are the best in

the business. And with our

extensive worldwide network of

stocking distributors and regional

warehouses, delivery of standard

products is immediate.

So you don’t waste time in

dry dock or have down time.

WE GO BEYOND ROUTINE CUSTOMER SERVICE.

No matter where you are in the

world, whether you’re an owner,

shipbuilder, engineer, or technician,

you are an appreciated customer.

Our customer-focused

representatives have extensive

product knowledge.

Even if you haven’t placed an

order, you’ll get the answer

to your problem with one

phone call. When you call

+1.440.834.5400, one of our

product experts will talk to you

personally, and get results.

DURAMAX MARINE® LLC IS AN ISO 9001:2015 CERTIFIED COMPANY.

We are proud to have been audited

and certified by an independent

ISO 9001 registrar; Smithers Quality

Assessments (SQA). This certification

establishes that Duramax Marine

products and services are produced

using a quality management

system that meets internationally

recognized requirements.

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Quality that shows above and below the surface.

DELIVERING WORLD-CLASS PRODUCT SOLUTIONS FOR OVER 100 YEARSDELIVERING WORLD-CLASS PRODUCT SOLUTIONS FOR OVER 100 YEARS

Attention to detail is more than

just a company policy. It’s a matter

of personal pride with the people

who craft our products.

Our commitment to excellence

is evident in every product we

manufacture. Our Johnson Cutless®

Bearings, Duramax® Advanced

Bearing Systems, Johnson®

Stuffing Boxes and Ultra-X®

Packing, Shaft Seal Systems,

Keel Coolers, Box Coolers and

Impact Protection Systems

are known worldwide for their

engineered quality and

dependable performance.

WE’RE THE WORLD LEADER IN WATER-LUBRICATED BEARING SYSTEMS.

Duramax Marine® Johnson

Cutless® Sleeve and Flange

Bearings have set the standard in

the marine industry. Our Advanced

Bearing Solutions are custom

designed and manufactured to

exact tolerances to match

specific applications in extreme

working environments.

We use the highest quality raw

materials and compound our own

rubber formulas, then test them

in our accredited lab. Through our

proven, state-of-the-art production

processes, we manufacture prod-

ucts you can trust, even before you

put a micrometer to them. When

customers compare our bearings

to the competition, they can

appreciate the difference.


Quality that shows above and below the surface.

IF THERE’S A BETTER WAY, WE’LL FIND IT.

To excel in business today

you’ve got to be a leader.

Duramax Marine® has led the

industry for decades. We engineer

innovative products to solve your

specific problems, to increase

performance, and reduce

maintenance costs. We respond

quickly to your needs so you meet

your schedule and keep your vessel

- or operation - running smoothly.

Our commitment to you has also

resulted in service innovations.

Real-time inventory and additional

field warehouses simplify ordering

and reduce back orders.

Shortened shipping distances

result in faster delivery.

Duramax Marine®

products are at work

around the world.

From the Americas.

To Europe. To the

Pacific Rim.

www.DuramaxMarine.com

Johnson Cutless® Water-Lubricated Bearing Systems

Duramax® Advanced Water-Lubricated Bearing Systems

Cutless® Industrial Water-lubricated Bearing Systems

Duramax® Heat Exchange Systems

Duramax® Shaft Sealing Systems

Duramax® Impact Protection Systems

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The workboat

industry trusts

Johnson Cutless®

to carry the load in

the harshest working

environment.

Johnson Cutless® Water-lubricated Bearing Systems.


The Johnson Cutless® Bearing

is trusted by more industry

professionals than any other.

It is the original, true, Cutless®

Bearing. And, only available

from Duramax Marine®. Our

precision-designed, specially

formulated nitrile rubber is

precision molded to fit the shaft

in accordance with U.S. Navy

Buships clearances for a

low coefficient of friction.

Johnson Cutless® Bearings are

used for marine propulsion and

rudder applications. They are also

used extensively in industrial

pump applications.

Our water-lubricated bearings

have proven themselves for

decades, setting performance

standards. They are designed

and engineered to cause grit

particles and other abrasives

to be washed into grooves and

flushed away, protecting the

shaft and prolonging bearing life.

Our bearings possess inherent

vibration-damping qualities and

are non-polluting.

Standard Johnson Cutless®

Flange, Sleeve and Non-metallic

Sleeve Bearings are readily

available from a network

of stocking distributors and

sales agents worldwide.

Custom sizes and custom

materials can be furnished for

your special applications.


Johnson Cutless® Water-lubricated Bearing Systems.


JOHNSON CUTLESS® NON-METALLIC SLEEVE BEARINGS

Non-metallic shell that resists

corrosion, with specially formulated,

tough, molded nitrile rubber. Over

100 different sizes, in inch and

metric, are available in stock.

Custom sizes and materials upon

request for special applications.

JOHNSON CUTLESS® SLEEVE BEARINGS

Precision machined naval brass

shell featuring specially formulated

molded nitrile rubber that meets

MIL-DTL-17901C(SH) Class II type

bearing specifications. Over 100

different sizes in stock, including

inch and metric. Custom sizes and

materials by request for unique

applications.

Our in-house

laboratory and

testing facilities

ensure your products

meet the highest

quality standards

in the industry.

DX 490 RUDDER BUSHINGS

Molded hard nitrile rubber composi-

tion withstands rugged conditions

common to rudder steering

applications. Provides high

rigidity for maximum stability.

Can be lubricated with water,

grease or oil. Molded I.D. and O.D.

dimensions allow ample material

for finish machining at job site.

DURAMAX® NCB (NICKEL-CHROME-BORON) SHAFT LINERS

Duramax® Shaft Liners can

double the life of conventional

materials such as 316 or heat

treated 410 stainless and give 4-5

times increased wear life. A 58 to

62 Rockwell “C” hardness rating of

Duramax® NCB increases service

life of shafts and shaft sleeves

where mechanical abrasion and

corrosion take place.

JOHNSON CUTLESS® FLANGED BEARINGS

Centrifugally cast naval brass shell

with integral flange, and molded,

specially formulated, nitrile rubber

lining. Meets MIL-DTL-17901C(SH)

Class II type bearing specifications.

Available in solid and split design.

Over 70 sizes in stock. Custom sizes

and materials upon request.

LLOYD’S REGISTER TYPE APPROVED PRODUCT

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Duramax® Advanced Water-lubricated Bearing Systems.


Duramax Marine® is the leader

in the development of advanced

water-lubricated propulsion

bearing systems. Our innovative

bearing solutions are a result

of researching the scientific

fundamentals of bearing

technology, then combining

research with a solid base of

product application knowledge.

We are continually advancing

rubber-based elastomer bearing

technology, setting new standards

in superior bearing performance

in real world applications.

Our R&D focus is on low friction,

low acoustic signatures, increased

bearing and shaft life.

If you have a unique challenge,

talk to a Duramax® bearing expert

for an innovative bearing solution.

Call: +1 440-834-5400.

Duramax Marine® Advanced Bearing Systems are found in most U.S. Navy surface combat craft and commercial marine vessels around the world.


Duramax® Advanced Water-lubricated Bearing Systems.


Johnson®

Demountable Rubber

Bearing Staves help

dredgers cut new

shipping channels

in extremely harsh,

abrasive environments.

ROMOR® I STAVE BEARINGS

Specially formulated nitrile rubber

permanently bonded to ultra high

molecular weight polyethylene

(UHMW-PE) backing. Bearing

surface is engineered with a

controlled thickness, 15 to 20

micro-inch glass smooth finish and

80 Durometer, Shore A hardness

providing lower coefficient of

friction, less break-in time, vibration

dampening, quiet operation and

longer bearing and shaft life.

ROMOR® I Bearings are non-pollut-

ing and meet MIL-DTL-17901C (SH)

Class III specifications. ROMOR® I is

available in two configurations:

For naval bronze dovetail housing-

interchangeable with brass-backed

Class I staves and 1/4 the weight.

Radius-backed for standard

round-bore cylindrical stern tubes.

JOHNSON® DEMOUNTABLE STAVE BEARINGS

They are tough, molded,

nitrile rubber staves that

are used in more than

2,000 installations

operating worldwide. They

allow for bearing change-out

without shaft or propeller removal,

reducing maintenance time and

cost. Choice of bearing sizes avail-

able for each bearing housing

diameter.

DMX® POLYMER ALLOY BEARINGS

Revolutionary polymer alloy

bearing can be used in a 2:1 or less

L/D configuration. Tests confirm

DMX™ performs better than U.S.

Military Specification MIL-DTL-17901C

(SH) requirements. Runs extremely

well at low shaft speeds without

noise, vibration or stick-slip. It has

low coefficient of friction at

breakaway and full range of shaft

speeds. Dry run capable in event

of water shut down. It’s ideal for

workboats, tugs, dredgers,

as well as ocean-going vessels.

DMX® LOCKING STAVE SYSTEM

When you need a tough, durable,

water-lubricated propulsion bearing

that can easily handle abrasive–

laden environments and result in

near-zero shaft and sleeve wear,

use DMX®. It eliminates the need

for a bearing shell. Can be mounted

inside of stern tube or strut.

DMX® SLEEVE OR FLANGE BEARING

We can design and manufacture

a custom sleeve or flange bearing

lined with DMX® to match your

specific application in a solid or

split design.

ROMOR® SEGMENTAL HOUSINGS

Centrifugally cast bronze housings

that are precision machined with

keystone or dovetail races.

Longitudinal water grooves

between staves provide optimum

water flushing and lubrication.

They are available in split or solid

configurations and custom lengths

and diameters.

DURABLUE® COMPOSITE RUDDER BUSHINGS, THRUST WASHERS AND WEAR PADS

Duramax® DuraBlue® composite

material is dimensionally stable and

needs no lubrication. Experiences

virtually no swelling in sea water. It

has a low coefficient of friction value

of 0.1 to 0.2, resulting no stick-slip

during rudder operation. DuraBlue® is

stable with misalignments, tolerates

edge loading and maintains a high

compression strength. It has a high-

strength-to-weight ratio and resists

damage or fracture. Absorbs stresses

and high impact loads associated with

rudder applications better than metal

material alternatives like bronze, brass

along with nylon and other urethane

based products. In standard sizes and

custom machined for exact applications.

DURABLUE® COMPOSITE WATER-LUBRICATED STERN TUBE BEARINGS

Duramax® DuraBlue® water-lubricated

stern tube bearings are manufactured

using a unique synthetic reinforced

composite that incorporates solid

lubricants for superior operation and

outstanding wear life in blue water

applications.

DuraBlue® is dimensionally stable, has

a very low coefficient of expansion

in extremely cold or tropical regions.

DuraBlue® is designed to tolerate edge

loading and misalignment even with

the heaviest loads. It is chemical and

corrosion resistant and will not cause

corrosion to housing.


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OEM pump

manufacturers

have used Cutless®

Industrial bearings

for over 40 years.

Cutless® Industrial Water-lubricated Bearing Systems.


Cutless® Bearings give optimal

performance in all rotating shaft

applications. They are individually

inspected to insure the highest

standard of quality and are

manufactured to meet required

industrial tolerances. They are

ideal for in centrifugal, horizontal

and vertical pumps. Cutless® is

the long-time trusted bearing of

original equipment manufacturers

for centrifugal pumps, horizontal

pumps, and vertical pumps, along

with aerators and pumps for large

hydro installations.

Our elastomeric compounds are

engineered to control (TSW)

Total System Wear, unlike hard

surface bearings that can score

or cause increased wear to the

rotating shaft.

Cutless® Bearings efficiently

dissipate heat, flush away

abrasives greatly reducing shaft

damage, easily withstand low and

high speeds, and carry high shaft

loads with minimum deflection.

They have excellent bearing con-

centricity, resist oil, grease and

chemicals, and are non-polluting

and environmentally friendly.


Cutless® Industrial Water-lubricated Bearing Systems.


SLEEVE AND FLANGE BEARINGS

They are manufactured with high

quality, corrosion resistant naval

brass shells and non-metallic

composite shells as standard.

Custom shells can be manufactured

in materials such as stainless,

carbon steel, Monel®, aluminum,

titanium, and various

composites and plastics.

Custom rubber elastomer linings

are engineered for any fluid or

working condition, from abrasive

dirty water to caustic chemicals

like chlorine, sulfuric acid or high

temperature oils. We can deliver

a pump bearing that will perform

for your specific need.

CUTLESS® DR “DRY START” BEARINGS

With a static friction value of 3.6

the proprietary rubber polymer

compounds of the Cutless® DR

reduces wear at breakaway and

low shaft speed operation. Start-up

torque requirements are decreased

and stick-slip is minimized. It

eliminates the need for a dedicated

water feed line to lubricate upper

bearings during “dry start” stage.

CUTLESS® SPIDER BEARINGS

Available with Cutless® DR or CR

Bearings. Combines all the benefits

of a standard Cutless® bearing with

the added benefit of a proprietary

“self lubricating” formulation to

handle dry start ups and ease of

installation. They protect the shaft

from abrasives that can cause shaft

damage and excessive wear

CUTLESS® CR CHEMICAL-RESISTANT BEARING

We engineered a bearing containing

Viton® in its lining formulation. It

protects the bearing from excessively

corrosive applications. It resists corro-

sion and is unaffected by chloramine

and a variety of other

corrosive chemical

applications.

CUTLESS® WEAR RINGS AND SEALS

Cutless® Wear Rings are custom

engineered for high-speed pump

applications. They are available in

stainless steel, bronze, brass or non-

corrosive shells. Wear Rings’ custom

formulated linings handle abrasive

environments, dry intermittent

start-ups, or corrosive chemicals.

They extend equipment life and

maintain tight wear ring clearances.

Cutless® DR Bearings

Cutless® Spider Bearings

Cutless® CR or DR Bearings

Cutless® Wear Rings

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Duramax® Industrial

has an advanced

bearing solutions ideal

for hydroelectric

turbine and centrifugal,

horizontal and vertical

pump applications.

Advanced Water-lubricated Industrial Rubber Bearings.


Our Advanced Bearing Solutions are

custom-engineered to exact toler-

ances for extremely long wear life

in extreme working environments.

Duramax® Industrial R&D has an

in-house, state-of-the-art, world

class lab where bearing specialists

continually custom formulate elas-

tomeric bearing technology that will

allow you to operate your equip-

ment with near zero bearing and

shaft wear. Duramax® Heavy-Duty

Industrial Bearings are designed

to withstand low and high speeds,

and can carry high shaft loads with

minimum deflection.

Advanced Hydroelectric Turbine Bearings

Duramax® Bearing water-lubricated

bearing technology has delivered 20

years performance and 40 year liner

life at the Pennsylvania Power and

Light’s Holtwood Dam.

Duramax® ROMOR® I staves’ per-

formance operating on split welded

sst shaft liners will be hard to match

with any other bearing material. It’s

further proof that the tribological

forces which occur in water-lubricat-

ed rubber polymer delivers the best

bearing solutions possible.

OEM’s trust Duramax® Bearings for Alternative Energy Equipment

Manufacturers know Duramax®

bearing specialists are continually

updating and researching ways to

improve our polymer formulations.

We continue to research ways to

increase performance levels, with

extended wear life and low friction

for use in new alternative windmill

and solar energy installations.

Main guide shaft bearing with ROMOR®I Rubber Staves


Advanced Water-lubricated Industrial Rubber Bearings.


Down Hole Directional Drilling

Mud motors (drilling motors) placed

in the drill string for horizontal

drilling in the oil and gas mining

industry uses different rotor and

stator configurations to provide

additional drilling power to the bit.

Duramax® Industrial offers

customized stator technology for

progressive cavity positive displace-

ment pump drilling operations.

CUTLESS® ADVANCED STATOR TECHNOLOGY

Our elastomer compounds are

custom formulated for your specific

application. Our unique manufacturing

method results in a superior rubber-

to-metal bond, superior strength and

abrasion resistance. Our stator

technology gives you long-

lasting service in the

harshest environments,

and extends your pump’s service life.

ROMOR® I STAVE BEARINGS

Specially formulated proprietary

nitrile rubber water-lubricated staves

have a 15 to 20 glass-smooth finish

and 80 Durometer, Shore A hardness,

backed by a light-weight polymer

corrosion resistant ultra-high

molecular weight polymer alloy

backing. It delivers unbelievably low

friction at extremely low journal

velocities. Available in radius back

and dovetail stave designs.

DMX® extremely low coefficient of friction

results in near zero TSWsm (Total System Wear).

Unlike competitors’ that only claim long

bearing life.

DMX® TECHNICALLY ADVANCED POLYMER ALLOY BEARINGS

It is the ultimate vertical pump

and hydroelectric main shaft guide

water-lubricated bearing material.

Independently tested to operate with

near-zero bearing and shaft wear.

Dry-run capable up to 10 minutes

in event of water shut down.

Can be used in a 1:1 or less L/D

configuration. Has a low coefficient

of friction from 0.14 at breakaway

to an unmatched 0.0036 at all

shaft speeds.

DMX® is available in sleeve or

flange bearing, and dovetail stave or

locking stave configurations.

JOHNSON® CUTLESS® SLEEVE AND FLANGE BEARINGS

Specially formulated, fully-molded

nitrile rubber lining in bronze (as

standard) or non-metallic shells

have an extremely low coefficient

of friction well under 0.001.

Our water-lubricated bearings are

designed to protect the shaft as well

as the bearing in clean as well as

abrasive environments.

DEMOUNTABLE RUBBER STAVE BEARINGS

There is a Duramax® Industrial

Bearing in a locking stave configu-

ration for shaft diameters from 3

to 35 inches. Rubber compounds

are designed for your specific

application, then custom machined

to fit your exact specifications.

The fact they can be installed

without removing the shaft is a

unique advantage.

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Duramax® Heat Exchange Systems.


Duramax Marine® offers a line

of custom designed cooling

systems to meet your specific

engine specifications and

operational requirements.

Our heat exchange system

experts will personally meet with

you to determine the perfect type

cooling and capacity you need.

We can custom build a hull-

mounted system that includes

our streamlined, one piece 90/10

Copper–Nickel DuraCooler® in

both a through-hull and flange-

mount design, or a Demountable

System with replaceable 90/10

Copper-Nickel spiral tubes.

If your requirement is an

in-hull system we can supply a

Duramax® Box Cooler or Plate

Heat Exchanger to meet your

cooling needs. For an estimate

call: +1 440-834-5400.

Ships’ captains trust Duramax® Heat Exchange Solutions to keep their diesels cooled and humming.


IN

IN

OUT

OUT

Duramax® Heat Exchange Systems.


DEMOUNTABLE KEEL COOLER

Our 90/10 Copper/Nickel spiral

tubing is resistant to salt water cor-

rosion and sea growth, and gives

superior heat transfer. Its demount-

able, modular design is available in

4, 6, 8, 12, and 24 tube units that

can be combined to cool multiple

circuits. There are no through-hull

fittings or inboard sea chest needed

which makes for easy installation.

Tubes conform to most hull curva-

tures. And, it is easily expanded

to re-power or add additional heat

sources to your vessel.

DURAMAX® BOXCOOLER

Gives you in-hull protection and large

cooling capacity. Operates in a sea

chest within your vessel protected

against underwater hazards. Able to

meet cooling needs of your engines as

well as other multiple heat sources.

Cooler tubes are coated with a

heat-cured synthetic coating that

protects against galvanic corrosion.

Impressed Current Anti-fouling

System (ICAF) resists biological

marine growth. Control

panel monitors life of

copper anodes, logs data

for diagnostic downloads,

and sounds alarm in the

event of malfunction.

DURAMAX® PLATE HEAT EXCHANGER

A unique, custom-designed, in-hull

system where seawater and heat

source water is pumped through

alternating embossed plates that

create turbulence, resulting in highly

efficient heat transfer. Can easily

expand system to re-power or cool

other heat sources.

DURACOOLER® SUPRSTAK™ with TurboTunnel Design (patent-pending)

Completely redesigned double-

stacked cooler is the most efficient

keel cooler Duramax Marine® has

ever built. It “jets” seawater in

tunnel-like configuration between

its upper and lower tube assem-

blies. Innovative design advance-

ments have been engineered to

both greatly enhance and optimize

turbulent flow outside and around

the keel cooler using Computational

Fluid Dynamic (CFD) modeling tech-

niques, then tested and validated

utilizing a full scale water tunnel.

DuraCooler® SuprStak™ takes keel

cooler technology to the next level.

Available in solid brazed unit or in

upper and lower modular design for

easier installation.

DURACOOLER® KEEL COOLER

Latest updated version of the

DuraCooler® with streamlined

header design that further enhances

cooling efficiency over a square head

design. A series of engineered flow

diverter “scoops” are built along the

width of the bottom edge the tubes

creating a diversion of the seawater

that “flushes” the stagnated areas

between the tubes forcing convec-

tion between hot tubes and the

lower temperature seawater.

This helps increase heat transfer

efficiency more than 17%. One-piece

design makes it easier to install and

90/10 copper-nickel construction

resists water flow erosion and

acts as antifoulant. Available in

through-hull or flange-mount.

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Helping protect vessel’s propulsion shaft and run at peak performance


Duramax® Shaft Sealing Systems.Our Duramax® DryMax® Shaft

Sealing System is a superior,

environmentally friendly, water-

lubricated pollution free system

that delivers long life, eliminates

shaft wear and handles the

toughest jobs every day on the job.

It was designed, researched and

tested in our own lab,

simulating abrasive conditions of

the Mississippi River.

Duramax Marine® has a long history

of helping the marine industry

keep their vessels running at

optimum performance.

Marine industry professionals

know Duramax always delivers

products that are rated the

highest quality in the indus-

try. This shaft sealing

system matches or

surpasses the quality

and ability to protect

the propulsion system

on your vessel.

Call your Duramax Shaft

Sealing system expert to

custom build a sealing system

for you at: +1 440-834-5400.

Spare Seal Ring & Spring

DuraChrome® Split Mating Ring

Retaining Ring for Inflatable Air Seal

Inflatable Air Seal Ring

Stainless Steel Garter Spring

Primary DryMax® Seal Ring

Shaft Earthing Assembly

DryMax® Bronze Housing




DRYMAX® SHAFT SEAL

This two-part sealing system is

designed with a nitrile rubber seal

that rotates with the shaft and

creates a hydrodynamic seal with

a proprietary DuraChrome® Alloy

Mating Ring- keeping the seawater

out and your bilge dry. It is perfect

for blue water or the harshest

brown water environments.

The DryMax® Sealing System is

designed to be a cost effective,

tough seal built to handle axial and

radial shaft movements, eliminating

wear on the shaft, while handling

the toughest jobs in harsh work-

ing conditions. It has a built-in

emergency inflatable seal and a

DuraChrome® Mating Ring that is

reversible, delivering 2X the life,

extending dry dock intervals. It is

available for shaft sizes up to 36".

DRYMAX® RUDDER SEALING SYSTEM

DryMax® is a robust

and reliable hydro-

dynamic rudder seal

system constructed

of the highest

quality materials

designed to deliver

long service life. DryMax® sealing

system was engineered, tested and

built by Duramax Marine in the USA.

This axial system provides excel-

lent sealing and can accommodate

large increases in radial clearances

due to wearing down of rudder

stock bushings. DryMax® Rudder

Sealing System is installed above

the DuraBlue® Rudder Bushing and

controls seawater from entering

the hull.

Duramax® Ultra-X®

compression packing

transforms stuffing box

into high-tech solution.

DURAMAX® ULTRA-X® HIGH PERFORMANCE COMPRESSION PACKING

This packing is the ultimate

packing designed specifically for

the marine industry. It lasts 5X

longer and has 300% Lower

friction than flax packing. Doesn’t

get consumed in use. Stays pliable.

Never hardens or becomes abrasive.

No need for adjusting the gland or

need to add more packing. Virtually

eliminates shaft scoring. Available

in sizes from 1/8" to 1-3/4".

Custom sizes upon request.

JOHNSON® HEAVY-DUTY STUFFING BOXES

Our Stuffing Boxes

are custom designed

and constructed of the

highest quality naval

bronze standard to fit

your exact application.

They are available also in alumi-

num and mild steel alloys. It can be

fitted with service options of water

lubrication, grease service “zerk”

fitting with lantern ring, or a

combination of both.

This is the first model to use our

“air seal” design that allows for

packing change without dry docking

vessel. Available for shaft sizes as

small as 2-1/2 inches to 15 inches.

In both solid or split design. 15-1/8

inches to 36 inches in split design.

DURAMAX® “STRONG BOY” STUFFING BOXES AND STERN CASTINGS

Bronze Stuffing

Box with

rectangular

mounting flange

for shaft sizes of 4

inch to 8 inch. Available

with compression packing, grease

lantern ring, “zerk” fitting and 1/3

length Johson® Cutless® Bearing.

Solid Bronze Stern Casting includes

Johson® Cutless® Sleeve Bearing

available for 1 inch to 6 inch shaft

diameters. Available with oval

or rectangular base with special

design for heavy propellers and

loads. Has built-in scoops for

lubrication.

DURAMAX® MECHANICAL FACE SEAL SYSTEM

“Maintenance-free” system for

propeller shaft and rudder

applications for shaft sizes of 3/4"

to 6-3/4 inches. No lip seals or

packing to change. No adjustments

once installed. Dripless seal elimi-

nates oil from bilge. Covered spring

chamber is back up for problems

experienced by other seals on the

market. Available for steel,

fiberglass and

aluminum hulls.

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Naval engineers use Duramax® Fendering Systems to protect vessels and engineered structures from costly repair damage.

Duramax® Impact Protection Systems.


You can trust Duramax Marine®

to supply you with the latest in

fendering technology for your

dock or vessel.

For over 40 years our fendering

solutions have been used in

military, marine, transportation,

highway, bridge and industrial

applications around the world.


Duramax® Impact Protection Systems.


WEATHERSTRIP DOOR GASKETS, WEATHERSTRIP DOOR GASKETS, WINDOW CHANNEL AND HATCH WINDOW CHANNEL AND HATCH COVER GASKETS COVER GASKETS

A full line for every application.

Designed for long lasting durable

sealing in the toughest Marine

environments. Available in a

variety of cross-sections and

durometers.

JOHNSONJOHNSON®® TOW KNEES TOW KNEES

Available in single, double and

pre-curved models with several

plate thicknesses for every

application. High quality composite

rubber securely vulcanized to steel

plate. Available in stock.

DURAMAXDURAMAX®® LINERITE LINERITE®® COMPOSITE COMPOSITE BATTERBOARD SYSTEM BATTERBOARD SYSTEM

It is virtually an indestructible layer

of protection. Has a 0.12 low-

coefficient of friction UHMW-PE

facing and a proprietary energy

absorbing composite core, fused

together at the molecular level.

LINERITE® is environmentally friendly.

Not affected by chemicals, marine

organisms or freezing temperatures.

LINERITE® can be pre-curved and

fitted with custom mounting holes.

It is available in standard black and

yellow, or can be matched to any

custom color. Stocked in standard

sizes or custom cut and fabricated

to exact dimensions.

Standard LINERITE®

The perfect replacement for

wood that crushes and splinters,

and Solid UHMW-PE Panels that

transfer energy to substructure

causing damage.

JOHNSONJOHNSON®® COMMERCIAL DOCK COMMERCIAL DOCK BUMPERS AND FENDERING BUMPERS AND FENDERING

Unlike other companies that use

SBR and other low quality com-

pounds to make their products, we

use only high quality EPDM rubber

available in black and non-marking

grey and white. It is unaffected by

ozone which can cause cracking in

SBR, natural rubber and butyl,

particularly under stress. EPDM

can perform up to 4X longer.

Our staff of experts will help

choose the perfect profile to fit

your specific application from our

large inventory. If needed, we can

customize extrusions to any style,

any shape, and any size. We can

pre-curve, cut and drill your fender

for easy installation.

DURAMAX® INDUSTRIAL WATER-LUBRICATED BEARING SYSTEMS Johnson Cutless® Sleeve and Flange Bearings Cutless® DR Bearings Cutless® Advanced Stator Technology Demountable Rubber Advanced Stave Bearings DMX® Advanced Polymer Alloy Bearings

Duramax Marine® is committed to providing excellence in every product we manufacture. Our Johnson Cutless® marine and industrial bearings, heat exchangers, impact protection systems and sealing systems are known worldwide for their engineered quality and dependable performance. Please contact the factory for information on any of the following Duramax Marine® products:

Duramax Marine® is an ISO 9001:2015 Certified Company

©2020 Duramax Marine® 17990 Great Lakes Parkway

Hiram, Ohio 44234 U.S.A. PHONE 440.834.5400

FAX 800.497.9283 USA & Canadaor 440.834.4950

[email protected] www.DuramaxMarine.com

JOHNSON CUTLESS® WATER-LUBRICATED BEARING SYSTEMS Johnson Cutless® Sleeve and Flanged BearingsDX 490 Rudder Bushings

DURAMAX® HEAT EXCHANGE SYSTEMS DuraCooler® Keel CoolersDuramax® Demountable Keel CoolersDuramax® BoxCoolers Duramax® Plate Heat Exchangers

DURAMAX® IMPACT PROTECTION SYSTEMS Johnson® Commercial Dock Bumpers, Fenders & Tow KneesWeatherstrip Door Gaskets, Window Channel and Hatch Cover GasketsLINERITE® Composite Batterboard Systems

DURAMAX® ADVANCED WATER-LUBRICATED BEARING SYSTEMS Johnson® Demountable Stave BearingsROMOR®I Stave Bearings and Segmental HousingsROMOR® C- Partial Arc BearingsDMX® Polymer Alloy Bearings DuraBlue® Bearings, Rudder & Pintle Bushings, Thrust Washers, and Wear Pads Industrial Pump Bearing Systems

DURAMAX® SHAFT SEALING SYSTEMS DryMax® Shaft Seal & Rudder SealDuramax® Mechanical Shaft Seal Johnson® Heavy-Duty Air Seal Stuffing BoxesDuramax® Ultra-X® High Performance Compression PackingJohnson® Strong Boy Stern Castings and Stuffing Boxes

DM-1020.101 CORP 07-01-20

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